The Centers for Disease Control and Prevention (CDC) announced raw milk from Miller's Organic Farm in Pennsylvania was the likely cause of a 2014 outbreak of listeriosis in Florida and California that killed one person and hospitalized another. Both people were over age 70.

The Food and Drug Administration recently found listeria in samples of the farm's raw chocolate milk, and DNA sequencing revealed the strain was "closely related" to the one that sickened the two people in 2014.

"We are concerned that contaminated raw milk and other raw dairy products from this company could still be on the market and make people sick," wrote the CDC in the news release.

Health experts recommend against drinking raw milk. The CDC notes it can pose severe health risks, including death, especially for people at higher risk for foodborne illness — children younger than 5, pregnant women, adults 65 and older and people with weakened immune systems.